%0 Journal Article %A San Martín, Bernardo %T Saddle-focus singular cycles and prevalence of hyperbolicity %J Annales de l'I.H.P. Analyse non linéaire %D 1998 %P 623-649 %V 15 %N 5 %I Gauthier-Villars %U http://www.numdam.org/item/AIHPC_1998__15_5_623_0/ %G en %F AIHPC_1998__15_5_623_0